The Effect of Thermal Conditions on Airflow and Heat Transfer in a Test Object: An Experimental Study
DOI:
https://doi.org/10.55606/jurritek.v5i2.8602Keywords:
Air Flow, CFD, Convection, Heat Transfer, Thermal ConditionsAbstract
This research aims to analyze the influence of thermal conditions; specifically the temperature difference between the test object and the environment; on the characteristics of air flow and heat transfer around it. The object of this study is a test piece subjected to free air flow under various temperature conditions; focusing on the convection heat transfer phenomenon. The main problem addressed is how temperature variations affect the convection heat transfer coefficient; heat transfer rate; and heat flux; as well as changes in air velocity and pressure profiles. Therefore; the objective of this research is to quantitatively compare and assess these thermal and fluid parameters through an experimental study approach and Computational Fluid Dynamics (CFD) simulation. The methodology involves direct measurement of temperature and pressure parameters under low and high-temperature conditions; which are then processed to determine the convection coefficient (); heat transfer rate (); and heat flux (). The main findings indicate that at low-temperature conditions; the heat transfer coefficient () was found to be 53.26 ; the heat transfer rate () was 24.99 W; and the heat flux () was 537.87 ; with a pressure drop of 0.86 Pa. In conclusion; thermal conditions play a crucial role in determining the dynamics of air flow and the efficiency of heat transfer; the greater the temperature difference (); the higher the potential heat transfer rate; establishing a strong correlation between thermal conditions and the convection phenomenon.
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Agustin, D. E., Wawan, & Heryadi, Y. (2022). Analisa peredam panas glasswool pada alat pembakar sampah (insinerator) portabel 2 in 1. Jurnal Teknologika, 12(1), 1–12.
Ansyah, P. R., & Ramadhan, M. N. (2018). Termodinamika teknik I.
Asim, S. B., Noviani, E., & Helmi, H. (2023). Pemodelan aliran fluida bidang miring pada lapisan tipis. Jurnal Matematika Integratif, 19(1), 127–136. https://doi.org/10.24198/jmi.v19.n1.40855.125-136
Cafiero, G., Castrillo, G., & Astarita, T. (2021). Turbulence properties in jets with fractal grid turbulence. Journal of Fluid Mechanics, 915, 1–21. https://doi.org/10.1017/jfm.2021.46
Diantoro, I., Darmanto, A., & Tim Mesin Pertahanan Akademi Militer Magelang. (2022). Pengaruh lokasi ketebalan maksimum airfoil simetrikal terhadap coefficient drag dan coefficient lift pada main rotor helikopter Bell 412. Jurnal Mekanikasista, 10(1), 36–48. https://ojs.akmil.ac.id/index.php/jurnalmekanikasista/article/view/23
Efendi, R., Darwin, D., Badia, B. A., Tando, A., Herlina, H., & Padang, W. L. (2023). Rancang bangun termokopel data logger berbasis Arduino Mega 2560 skala laboratorium. Machine: Jurnal Teknik Mesin, 9(2), 15–19. https://doi.org/10.33019/jm.v9i2.3803
Fatiatun, F., Pratiwi, A. D., Wirdati, A. C., & Avifatun, N. (2022). Penerapan termodinamika heating dan cooling pada dispenser. Jurnal Penelitian dan Pengabdian kepada Masyarakat UNSIQ, 9(2), 146–150. https://doi.org/10.32699/ppkm.v9i2.2658
Firman, M., Hartadi, B., Arifin, J., Irfansyah, M., & Program Studi Teknik Mesin. (2024). Perancangan terowongan angin rangkaian terbuka dengan sistem PIV (particle image velocimetry). Journal of Energy, Environment, and Mechanical Engineering Management, 8(1), 57–63. https://doi.org/10.30588/jeemm.v8i1.1781
Fredrick, M., Telaumbanua, E., & Zebua, R. K. (2024). Analisis aplikasi mekanika fluida dalam industri penerbangan. Identik: Jurnal Ilmiah Teknologi Informasi, 1(2), 63–69. https://doi.org/10.70134/identik.v1i2.93
Han, T., Li, Q., Shang, L., Chen, X., Zhou, F., & Li, W. (2025). Study on the influence of Reynolds number on heat exchange performance and Nusselt number of spray coil heat exchanger. Processes, 13(2), 1–16. https://doi.org/10.3390/pr13020588
Junaidin, B., Kusumaningrum, A., Prayogih, W., & Reo, Y. (2022). Rancang bangun sensor kecepatan angin berbasis Arduino untuk terowongan angin low subsonic. AVITEC, 4(2), 187–194. https://doi.org/10.28989/avitec.v4i2.1295
Lawson, J. M. (2021). Mass transfer to freely suspended particles at high Péclet number. Journal of Fluid Mechanics, 913, 1–25. https://doi.org/10.1017/jfm.2020.1177
Lee, T. S., Ooi, E. H., Chang, W. S., & Foo, J. J. (2021). Fractal grid-induced turbulence strength characterization via piezoelectric thin-film flapping velocimetry. Scientific Reports, 11(1), 1–19. https://doi.org/10.1038/s41598-021-02680-7
Li, D., Sang, Y., Lv, Z., Wu, K., & Lai, Z. (2025). Dynamic response analysis of wind turbine tower with high aspect ratio: Wind tunnel tests and CFD simulation. Thin-Walled Structures, 211, 113113. https://doi.org/10.1016/j.tws.2025.113113
Liu, Q., Miao, W., Bashir, M., Xu, Z., Yu, N., Luo, S., & Li, C. (2022). Aerodynamic and aeroacoustic performance assessment of a vertical axis wind turbine by synergistic effect of blowing and suction. Energy Conversion and Management, 271, 116289. https://doi.org/10.1016/j.enconman.2022.116289
Mahon, H., Friedrich, D., & Hughes, B. (2022). Wind tunnel test and numerical study of a multi-sided wind tower with horizontal heat pipes. Energy, 260, 125118. https://doi.org/10.1016/j.energy.2022.125118
Mufidah, I. Z., Trisnowati, E., Salsabila, K. M., Muniroh, C., Risqi, F. D. M., & Kurniawan, R. (2023). Analisis hukum termodinamika pada pembuatan batu bata di Magelang, Jawa Tengah. Jurnal Pendidikan MIPA, 13(3), 784–789. https://doi.org/10.37630/jpm.v13i3.1053
Mukhlisin, A., Erwin, E., & Wiyono, S. (2022). Rancang bangun smoke generator pada kecepatan angin rendah dengan wind tunnel rangkaian terbuka. Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa dan Inovasi, 4(1), 81–88. https://doi.org/10.35814/asiimetrik.v4i1.2944
Niulai, J., & Muskitta, N. D. (2022). Pengaruh bentuk benda uji terhadap pola aliran angin di ruang uji wind tunnel. Journal of Vocational Engineering and Education, 7(1), 37–46. https://doi.org/10.32531/jvoe.v7i1.486
Petropoulos, N., Couchman, M. M. P., Mashayek, A., de Bruyn Kops, S. M., & Caulfield, C. C. P. (2024). Prandtl number effects on extreme mixing events in forced stratified turbulence. Journal of Fluid Mechanics, 983, 1–14. https://doi.org/10.1017/jfm.2024.110
Ratna, O., Titisari, D., & Hamzah, T. (2021). Kalibrator suhu dengan thermocouple dilengkapi dengan tampilan grafik. Jurnal Teknokes, 14(1), 28–35. https://doi.org/10.35882/teknokes.v14i1.5
Santi, D., Yuliati, S., Meidinariasty, A., & Program Studi Teknologi Kimia Industri Politeknik Negeri Sriwijaya. (2023). Analisis laju perpindahan panas pada alat tray dryer tenaga surya dalam proses pengeringan ikan asin. Jurnal Pendidikan Tambusai, 7(3), 21537–21543.
Trisnowati, E., Putri, D. R., Annisa Qurrota, S. S., Nikmah, F. K., & Mulyaningrum, D. (2023). Analisis konsep termodinamika pada produksi kerupuk sebagai bentuk kearifan lokal di Magelang, Jawa Tengah. Jurnal Pendidikan MIPA, 13(1), 268–273. https://doi.org/10.37630/jpm.v13i1.795
Zaki, M. F. G., Ghofur, A., & Studi Teknik, P. (2020). Analisa efektivitas heat transfer pada PLTU dengan metode ASME 4.0 dan 4.3. Jurnal Rotary Teknik Mesin, 2(1). https://doi.org/10.20527/jtam_rotary.v2i1.2003
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